diff --git a/include/mbedtls/threading.h b/include/mbedtls/threading.h
index fbc7374..1b9c7ce 100644
--- a/include/mbedtls/threading.h
+++ b/include/mbedtls/threading.h
@@ -38,8 +38,7 @@
 
 #if defined(MBEDTLS_THREADING_PTHREAD)
 #include <pthread.h>
-typedef struct mbedtls_threading_mutex_t
-{
+typedef struct mbedtls_threading_mutex_t {
     pthread_mutex_t MBEDTLS_PRIVATE(mutex);
     /* is_valid is 0 after a failed init or a free, and nonzero after a
      * successful init. This field is not considered part of the public
@@ -70,15 +69,15 @@
  * \param mutex_lock    the lock function implementation
  * \param mutex_unlock  the unlock function implementation
  */
-void mbedtls_threading_set_alt( void (*mutex_init)( mbedtls_threading_mutex_t * ),
-                       void (*mutex_free)( mbedtls_threading_mutex_t * ),
-                       int (*mutex_lock)( mbedtls_threading_mutex_t * ),
-                       int (*mutex_unlock)( mbedtls_threading_mutex_t * ) );
+void mbedtls_threading_set_alt(void (*mutex_init)(mbedtls_threading_mutex_t *),
+                               void (*mutex_free)(mbedtls_threading_mutex_t *),
+                               int (*mutex_lock)(mbedtls_threading_mutex_t *),
+                               int (*mutex_unlock)(mbedtls_threading_mutex_t *));
 
 /**
  * \brief               Free global mutexes.
  */
-void mbedtls_threading_free_alt( void );
+void mbedtls_threading_free_alt(void);
 #endif /* MBEDTLS_THREADING_ALT */
 
 #if defined(MBEDTLS_THREADING_C)
@@ -87,10 +86,10 @@
  *
  * All these functions are expected to work or the result will be undefined.
  */
-extern void (*mbedtls_mutex_init)( mbedtls_threading_mutex_t *mutex );
-extern void (*mbedtls_mutex_free)( mbedtls_threading_mutex_t *mutex );
-extern int (*mbedtls_mutex_lock)( mbedtls_threading_mutex_t *mutex );
-extern int (*mbedtls_mutex_unlock)( mbedtls_threading_mutex_t *mutex );
+extern void (*mbedtls_mutex_init)(mbedtls_threading_mutex_t *mutex);
+extern void (*mbedtls_mutex_free)(mbedtls_threading_mutex_t *mutex);
+extern int (*mbedtls_mutex_lock)(mbedtls_threading_mutex_t *mutex);
+extern int (*mbedtls_mutex_unlock)(mbedtls_threading_mutex_t *mutex);
 
 /*
  * Global mutexes